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  • Polymer and Materials Science  (2,009)
  • 42.75  (26)
  • 1950-1954  (2,035)
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  • 1
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 2
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 3
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Contributions to the Theory of Chemical Polarisation during Solution, Separation and Overstressing of MetalsIt was shown that the appearance of surface layers is an essential factor in the chemical polarisation which occurs during the solution, separation, overstressing, inhibitory action, polishing and passivity of metals. The surface layers exercise a restraining effect on the adjustment of the equilibrium of association. These layers are to be found on practically all metals and even in solutions which are capable of dissolving the material of which the layers are composed. They are created by a slowing down in the speed of the diffusion of the ions necessary for the dissolving of the metal in relation to the more rapid formation of layers on the surface of the metal. Such surface layers differ from the usual macromolecular surface layers, such as oxides or scale, rust, salts, etc., in their solubility. Their formation continues at a very high reproductive rate, even though the top layers are removed, and they form an indication of the behaviour of the metal in solutions after it has been subjected to suitable preliminary treatment. In contra-distinction to the irreversible macro-molecular surface layers, the afore-mentioned layers can be regarded as being reversible micro-molecular coverings.
    Notes: Es wird gezeigt, daß das Auftreten von Deckschichten ein wesentlicher Faktor bei der chemischen Polarisation, bei der Auflösung oder Abscheidung von Metallen, bei der Überspannung, Inhibitorwirkung, Glanzwirkung und Passivität ist. Die Deckschichten bewirken eine Hemmung der Gleichgewichtseinstellung. Sie sind auf praktisch allen Metallen und selbst in solchen Lösungen vorhanden, die an sich befähigt wären, die Deckschichtsubstanz aufzulösen. Sie entstehen durch eine geringere Geschwindigkeit des Diffusionsvorgangs, der für die Metallauflösung erforderlichen Ionen im Vergleich zur schnelleren Deckschichtenbildung unmittelbar auf der Metalloberfläche. Derartige Deckschichten unterscheiden sich wesentlich von den bekannten makromolekularen Deckschichten wie Oxyd- oder Zunderschichten, Rost, Salzschichten usw. durch ihre verschiedene Löslichkeit. Sie bilden sich selbst nach ihrer Entfernung immer wieder und zwar sehr gut reproduzierbar nach und sind ein Kennzeichen für das Metall hinsichtlich seines Verhaltens bei einer bestimmten Vorbehandlung in einer bestimmten Lösung. Sie können im Gegensatz zu den irreversiblen makromolekularen Deckschichten als reversible, mikromolekulare Bedeckungen angesehen werden.
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  • 4
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Preparation and Passivation of light metals for paintingAluminum and magnesium alloys are forming natural oxide films, the strengthening of which is performed by several methods of chemical and electrolytic oxidation. Light metals are also protected by insoluble films of metal salts (phosphate films) in a similar manner as the iron metals. In recent years a new method was developed whereby metal organic protective films are produced by using so-called reaction primers (wash primers). All these protective films are functioning likewise as anticorrosive coatings and as adhesive substrates for paint and lacquer coatings.
    Notes: Aluminium- und Magnesium-Legierungen bilden an der Luft natürliche Oxydhäute, deren Verstärkung durch die verschiedenen Verfahren der chemischen und elektrolytischen Oxydation der Leichtmetalle angestrebt wird. Außer durch die unlöslichen Oxydschichten werden Leichtmetalle ebenso wie Eisenmetalle auh durch unlösliche Metallsalzschichten (Phosphatfilme etc.) geschützt. Auch die durch die sog. Reaktionsprimer oder Metallwandler erzeugten metallorganischen Deckschichten werden als antikorrosive Überzüge und Haftgründe für die nachfolgende Lackierung angewendet.
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  • 5
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 6
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 7
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 8
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 9
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 10
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Cerium-Cerium Alloys and Cerro alloysThe article opens with a brief historical survey of the production of cerium and cerium alloys, particular attention being paid to the manufacture of gas mantles and flints for lighters. A 99,92-99,93% pure metal is obtained by electrolysis or by the treatment of Cerium Cloride or Cerium Fluoride with Sodium or Lithium. Cerium plays an important part in the production and working of spheroidal cast iron, as a protective agent and as a catalyst. It si of particular value in various smelting processes, since it has a pronounced deoxydizing effect. The second part of the article is devoted tot he various cerium alloys, several of which are noteworthy for their very low melting point (47,2°C).
    Notes: Zunächst wird ein kurzer geschichtlicher Überblick über die Herstellung von Cer und Cerlegierungen gegeben, wobei besonders die Gasglühlichtindustrie und die Fabrikation von Zündmetall für Feuerzeuge berücksichtigt wird. Durch Schmelzflußelektrolyse oder durch Umsetzung von Cerchlorid bzw. Cerfluorid mit Natrium oder Lithium wird ein Metall in 99,92-99,93%iger Reinheit erzeugt. Cer spielt u. a. bei der Herstellung und Verarbeitung von Sphäroid-Gußeisen, zum Schutz von Werkstücken, also Katalysator, eine beachtliche Rolle. Für die Schmelztechnik ist es von besonderem Wert, da es sehr stark desoxydierend wirkt. Der zweite Teil der Arbeit ist den verschiedenen Cerrolegierungen gewidmet, von denen sich einige durch einen sehr niedrigen Schmelzpunkt (47,2°C) auszeichnen.
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  • 11
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 12
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 13
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Progress in the Manufacture of Acidresistant StonewareOne of the distinguishing features of stoneware is its resistance to chemical action and its outstanding mechanical properties. These qualities permitted the development of stoneware to keep pace with that of the chemical industry.The article describes further progress in the field of acid-resistant stoneware. Particular emphasis is laid on the development of special mixtures having great powers of resistance to temperature changes, at the same time retaining their excellent heat-conducting properties. Improvements in the mechanical working of stoneware are also discussed.The mechanical working of stoneware by grinding, polishing and threading has been brought to the point where the accuracy and finish of the work is equivalent to that obtaining in metal working practice. A new field of application of stoneware was thereby opened. The production of air and dust locks for use in installation working with ultrafine abrasive dust particles is an example. Stoneware rollers having precision ground surfaces are used in various industries. Ground, polished and threaded stoneware components enable many improvements and simplifications to be made in the design of machinery and equipment for the chemical industry.
    Notes: Kennzeichnend für den Werkstoff Steinzeug sind seine Beständigkeit gegenüber chemischer Korrosion und seine ausgezeichneten mechanischen Eigenschaften. Beides waren die Voraussetzungen, um mit der Entwicklung der chemischen Großindustrie Schritt halten zu können.In der Abhandlung werden weitere Fortschritte auf dem Gebiet des säurefesten Steinzeug besprochen. Diese werden besonders deutlich durch Entwicklung von temperaturwechselbeständigen und wärmeleitfähigen Spezialmassen und durch Verbesserung der Nachbearbeitungsmethoden.Die mechanische Bearbeitung von Steinzeug durch Schleifen, Polieren und Gewindeschneiden wurde so weit entwickelt, daß eine Vergütung und Maßgenauigkeit möglich ist, wie in der Metallindustrie. Dadurch wurden dem Steinzeug neue Anwendungsmöglichkeiten erschlossen. Beispielsweise werden Staubschleusen zur Förderung von feinsten aggressiven Staubteilchen hergestellt. Steinzeugwalzen mit präzisem Schliff der Oberfläche finden in verschiedenen Industriezweigen Verwendung. Geschliffene, polierte und mit Gewinde versehene Steinzeugteile brachten Vereinfachungen und Verbesserungen im Steinzeugmaschinen- und Apparatebau.
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  • 14
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The Anodic Behaviour of Aluminium and Al—Mg Alloys in Sulphuric Acid and Sodium Sulphate SolutionsAttempts were made to remove the film of oxide from aluminium and Al— Mg alloys, so that a pure aluminium surface could be obtained. Dilute sulphuric Acid and Sodium sulphate solutions of various concentrations were used as electrolytes. Only one cathodic polarisation had a slight effect on the loosening of the oxide film. However, a very rapid passivation always followed this activation (caused by the chemical action of the aqueous solutions). Hydrochloric acid and NaOH solutions in high concentrations did dissolve the oxide film, but did not permit of any anodic passivation in these solutions. It was possible to obtain activation in sulphuric acid containing chlorine ions, but, even in this solution passivation commenced as soon as the current was switched off. This passivation was caused by the chemical action of the electrolytes the porosity of the natural oxide film was reduced to 10-5 sq. cm./sq. cm. by activation, and a maximum value of 10-2 sq. cm./sq. cm. was obtained. As a result of the strong chemical affinity of aluminium, it is only possible to obtain a clean metallic surface for fractions of seconds.
    Notes: Es wurde versucht, den Oxydfilm von Aluminium und Al—Mg—Legierungen zu entferne, um reine Aluminiumoberflächen zu erhalten. Hierbei wurden verdünnte Schwefelsäure und Natriumsulfatlösungen verschiedener Konzentration als Elektrolyte benützt. Nur eine kathodische Polarisation hatte einen geringen, die natürliche Oxydschicht auflockernden aktivierenden Einfluß. Nach der Aktivierung trat jedoch immer wieder eine sehr schnelle Passivierung nur durch chemische Einwirkung der wäßrigen Lösung wieder ein. Salzsäuren und NaOH—Lösungen stärkerer Konzentration lösten wohl die Oxydschichten auf, gestatteten aber keine anodische Passivierung in diesen Lösungen. Eine Aktivierung konnte wohl in einer chlorionenhaltigen Schwefelsäure erzielt werden, aber auch in dieser Lösung trat augenblicklich nach Abschaltung des Stromes wieder Passivierung durch chemische Einwirkung des Elektrolyten ein. Die Porosität der natürlichen Oxydschicht wurde zu 10-4 bis 10-5 cm2/cm2 ermittelt, die maximal auf 10-2 cm2/cm2 durch Aktivierung gebracht werden konnte. Auf Grund der starken chemischen Affinität des Aluminiums ist die Erzielung einer freien, unbedeckten Metalloberfläche nur für Bruchteile von Sekunden möglich.
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  • 15
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 16
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 17
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 18
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: On the Behaviour of Zinc Anodes in Cyanide BathsAfter determination of the degree of cover obtained with zinc anodes in sodium cyanide and sodium-zinc-cyanide, solutions it was shown that a stable covering layer is formed in these solutions as a result of the reciprocal action of the electrolytes. This surface layer immediately disappears when subjected to all forms of activating and passivating treatment. The surface layer is at a maximum in pure sodium-zinc solutions, which have the least solvent effect on zinc cyanide. These surface layers disappear when large quantities of free sodium cyanide and sodium hydroxide are added. However, they are still present to a certain extent in solutions of maximum concentration.There is an exponential relationship between the effect of the addition of sodium cyanide or sodium hydroxide on the tendency of the zinc anodes to become passive and the degree of concentration of the ingredients of the bath, whilst a linear relationship exists between the latter and the are of the pores.Zinc cathodes show a concentration polarisation and a strong chemical polarisation, whilst zinc anodes in their active state and in free sodium cyanide solutions have the least capacity for polarisation of all the cyanide solutions under investigation. The greater the quantity of of fre NaCN, the less is the degree of polarisation evidenced by the active zinc anodes. Passive zinc anodes show the highest degree of polarisation, i. e., a pure surface layer polarisation.
    Notes: Durch Ermittlung des Bedeckungsgrades von Zinkanoden in Natriumcyanid- und Natriumzinkcyanidlösungen verschiedener Zusammensetzung wird gezeigt, daß sich in diesen Lösungen durch Wechselwirkungen mit dem Elektrolyten eine stabile Deckschicht ausbildet, die sich bei allen Aktivierungs- und Passivierungsbehandlungen gleichmäßig wieder ausbildet. Diese Bedeckung ist am größten in reinen Natriumzinkcyanidlösungen, die das geringste Lösungsvermögen für Zinkcyanid besitzen. Durch größere Zusätze von freiem Natriumcyanid und Natriumhydroxyd verschwinden diese Deckschichten immer mehr, bleiben aber bis zu einem gewissen Ausmaß auch in den konzentriertesten Lösungen erhalten.Zwischen der Wirkung eines Natriumcyanid- oder Natriumhydroxydzusatzes auf die Neigung der Zinkanoden, passiv zu werden, besteht eine exponentielle, zwischen der freien Porenfläche und der Konzentration der Badbestandteile eine lineare Proportionalität.Zinkkathoden zeigen Konzentrationspolarisation und eine starke chemische Polarisation, Zinkanoden sind im aktiven Zustand und zwar in reinen Natriumcyanidlösungen am geringsten von allen untersuchten Cyanidlösungen polarisierbar. Je größer die Menge an freiem NaCN ist, eine um so geringere Polarisation weisen die aktiven Zinkanoden auf. Passive Zinkanoden zeigen die stärkste Polarisation, nämlich eine reine Deckschichtenpolarisation.
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  • 19
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 20
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Protective Lead Coating by PaintThe number of metallic pigments capable of being used as a rust preventative is small. Ultra-finely pulverised lead has proved to be far superior to all other metals. However, the addition of a binder in all respects suitable to the pigment is an absolute necessity when lead is used. Chlorinated rubber has been proved to be of particular value in this respect. The use of “Plumbol” paint also applies a coating of lead on the surface of iron, one coat of which has the same protective value as three or four coats of oil-bound paints. Weathering tests have also substantiated the protective value of lead coating paints as compared with the usual oil-bound paints. A maximum of protection is obtained against the action of certain chemical agents (soda lye, potash lye, sulphurous acid, sulphuric acid, acetic acid and other cold dilute acids), but no protection against the effect of nitrose (a solution of nitrosyl sulphuric acid in sulphuric acid, formed in the lead-chamber process) fumes and nitric acid results. Generally speaking, a coating of „Plumbol“ paint affords the same protection as a coating of metallic lead the same thickness.
    Notes: Die Zahl der verwendungsfähigen metallischen Pigmente in Rostschutzfarben ist gering. Feinstgepulvertes Blei zeigt sich allen übrigen Metallen überlegen. Erforderlich ist bei Bleiverwendung ein dem Pigment vollkommen angepaßter Bindemittelzusatz. Chlorkautschuk hat sich hier besonders bewährt. Man erzielt durch den „Plumbol“-Pinselaufstrich gleichsam eine „Verbleiung„ des Eisens. Im Effekt ist ein einmaliger Aufstrich einer 3-4 - fachen Ölfarbauflage ebenbürtig.  -  Bewitterungsversuche zeigen vergleichsweise die wesentlich bessere Schutzwirkung der „Pinselverbleiung“ gegenüber den üblichen Ölanstrichen. Der Schutz erweist sich gegen chemische Agentien (Natronlauge, Kalilauge, schweflige Säure, Schwefelsäure, Essigsäure und andere verdünnte kalte Säure, Schwefelsäure, Essigsäure und andere verdünnte kalte Säure, Essigsäure und andere verdünnte kalte Säuren) als äußerst widerstandsfähig. Nicht jedoch gegen nitrose Gase und Salpetersäure.  -  eine „Plumbol“- Anstrich-Folie bietet im im allgemeinen den gleichen Schutz wie eine Schicht von metallischem Blei gleicher Dicke.
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  • 21
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The Prevention of Water Corrosion in RefineriesThe protection of equipment against the corrosive effects of water is problem that affects underground storage tanks, boilers and other equipment. The degree of corrosion depends essentially on factors such as the presence and nature of im-purities in the water, temperatures prevailing in the system and the velocity of the flowing water. The following methods of corrosion prevention are discussed:  -  cathodic protection, organic coatings (paints), metallic coatings, the addition of corrosion retardants, pretreatment of the water (de-aeration) and choice of suitable metals or alloys as materials of construction.
    Notes: Der Korrosionsschutz von Anlagen gegen Wasser tritt in vielfältiger Gestalt auf, bei unterirdischen Lagertanks, Dampfkesseln und Freikonstruktionen. Für die Stärke des korrosiven Angriffes sind hierbei wesentlich maßgebend die Gegenwart und Natur von Verunreinigungen, die temperatur des Systems und die Strömungsgeschwindigkeit des Wassers. Von den Verfahren zur Korrosionskontrolle werden behandelt: Kathodischer Schutz, organische Überzüge (Anstriche), metallische Überzüge, Hemmstoffzusätze, Änderung der Umgebung durch Vorbehandlung (Entlüftung) der Wässer und Wahl geeigneter Metalle bzw. Legierungen.
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    Keywords: Chemistry ; Polymer and Materials Science
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    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    Keywords: Chemistry ; Polymer and Materials Science
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    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 28
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The Testing of Stainless Steels for intercystalline Corrosion by Electrolytic Etching in Oxalic AcidThe sensitivity of stainless steels to intercristalline corrosion is generally ascertained in the USA. by determining the corrosion rate in boiling 65% Nitric Acid during a period of 240 j. The present article describes a method of determining the tendency of certain stainless steels to intergranular corrosion in about 15 minutes. The finely etched surface obtained through electrolytic etching in oxalic acid serves as the basis for this new method. Steels which only show very slight, or no evidence at all, of attack as a result of carbide separation at the edges of the grains are not subject to rapid intercristalline corrosion, and, therefore, do not need to be submitted to the Nitric Acid test. However, steel which show marked evidence of intergranular corrosion after oxalic acid etching must subsequently be tested in HNO3 for the purpose of determining whether the degree of intergranular sensitivity exceeds the permitted limits for the maximum corrosion rate in HNO3 as determined by the future employment of the steel.
    Notes: In den USA wird die Empfindlichkeit rostfreier Stähle für interkristalline Korrosion im allgemeinen durch Bestimmung der Korrosionsgeschwindigkeit in sidender 65%iger Salpetersäure während einer Einwirkungszeit von 240 h nachgewiesen. In der Vorliegenden Abhandlung wird ein Verfahren beschrieben, das gestattet, gewisse rostfreie Stähle auf ihre Neigung zu intergranularer Korrosion in etwa 15 min zu prüfen und zwar auf Grund des Feingefüges, das durch elektolytisches Ätzen in Oxalsäure entwickelt wird. Stähle, die hierbei nur einen geringen oder überhaupt keinen Angriff infolge von Carbidausscheidungen an den Korngrenzen zeigen, unterliegen der raschen interkristallinen Korrosion nicht und brauchen deshalb nicht dem Salpetersäuretest unterworfen werden. Stähle, die dagegen bei der Oxalsäure-Ätzung einen merklichen intergranularen Angriff zeigen, müssen anschließend in Salpetersäure geprüft werden, um festzustellen, ob der Grad der intergranularen Empfindlichkeit die Grenze überschreitet, die durch die maximale Korrosionsgeschwindigkeit in Salpetersäure für die Verwendbarkeit des Stahls gegeben ist.
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Temporary Anti-corrosive MeasuresThe article opens with a survey of the various methods employed for ensuring temporary protection against rust. The following points are then discussed:  -  creation of a non-corrosive ambient atmosphere, use of special removable protective coatings (having an oil, wax or patty base). Particular attention is paid to the use of Dicyclorhexylammonium nitrite (VPI) and to modern anticorrosion compounds having a mineral oil base. Some practical examples of the application of these protective coatings for interior and exterior surfaces are included. The removal of such coatings is then discussed. The article closes with a brief discussion on tests suitable for testing temporary anti-corrosive compounds. A compendious bibliography on the subject is appended.
    Notes: Es wird eine Übersicht über die verschiedenen Methoden des temporären Rostschutzes gegeben. Behandelt werden: Schaffung einer nicht angreifenden Atmosphäre  -  Verwendung geeigneter Schutzüberzüge (abziehbar und auf der Basis von Ölen, Wachsen und Fetten). Besonders eingegangen wird auf den Schutz durch Dicyclohexylammoniumnitrit (VPI) und auf moderne Rostschutzmittel auf der Mineralölbasis. Praktische Beispiele für die Anwendung dieser Rostschutzmittel für innere und äußere Oberflächen werden angegeben. Dann wird die Entfernung der Überzüge besprochen. Zum Schluß werden verschiedene Kurzprüfungen für temporäre Rostschutzmittel diskutiert und das ziemlich umfangreiche Schrifttum angegeben.
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    Description / Table of Contents: The Corrosion of Metals and Metallic Coatings in Tropical and Sub-tropicalExtremely high temperatures and humidities can be encountered in a tropical climate, which naturally can be the cause of extensive corrosion. The great difference between maximum day temperature and minimum night temperatures are particularly dangerous in this respect, since they lead to corrosion as a result of sweating, due to condensation of water vapour. This can even occur under conditions which otherwise would not normally favour corrosion. Corrosion through sweating can also occur inside the package or container during transport and storage. The action is greatly accelerated by the presence of minute quantities of chlorides, mostly deposited by atomised sea water. A case under investigation proved that corrosive action is also accelerated in desert locations, far removed from the sea, by particles of sand containing salt, which are blown into the package or container by the action of wind. The article concludes with a summary of the behaviour of various metals and metallic coatings in tropical and sub-tropical climates.
    Notes: Im tropischen Klima können oft extrem hohe Temperaturen und Feuchtigkeitsgehalte auftreten, die naturgemäß zu besonders starken Korrosionen führen können. Besonders gefährlich sind die starken Temperaturschwankungen zwischen der Tageshöchsttemperatur und den niedrigsten Temperaturen bei Nacht, die durch Kondensation von Wasserdampf zu starken Schwitzkorrosionen selbst unter sonst nicht besonders stark aggressiven Bedingungen führen, Schwitzkorrosionen können bereits beim Transport innerhalb der Verpackung und bei Lagerung auftreten. Sie werden durch geringe Chloridmengen, meist aus zerstäubtem Seewasser stammend, stark beschleunigt. An einem näher untersuchten Beispiel wird gezeigt, daß der Angriff auch in den Wüstengegenden, weitab vom Meere, durch vom Winde aufgewirbelten salzhaltigen Sand erheblich beschleunigt werden kann. Abschließend wird eine Übersicht über das Verhalten verschiedener Metalle und Metallüberzüge im tropischen und subtropischen Klima gegeben.
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    Description / Table of Contents: The Applications of Electro-chemical Methods to the Investigation of CorrosionThe writer sets up a series of “Electrochemical Equilibrium Diagrams”, based on thermodynamic observations: These diagrams enable, under certain given conditions, a decision to be made whether a metal will corrode or not. By the aid of a set of polarisation curves, obtained experimentally, further information on appropriate protective measures can be obtained from the diagrams.
    Notes: Der Verfasser stellt auf Grund thermodynamischer Betrachtungen „Diagramme des elektrochemischen Gleichgewichtes“ auf, aus denen sich unter bestimmten Voraussetzungen ableiten läßt, ob ein Metall korrodiert oder nicht. An Hand experimentell aufgenommener Polarisationskurven werden aus den Diagrammen weitere Folgerungen auch fü geeignete Schutzmaßnahmen gezogen.
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    Description / Table of Contents: The Protection of Steel Constructional Work from CorrosionDependence of the formation of rust on climate, presence of electrolytes and the type of steel used  -  Mill scale diminishes the life of protective coatings and should therefore be removed  -  Chipping and other manual methods of scale removal are usually insufficient and should not be used on new constructional work  -  Sand blasting with coarse sand leaves points on the surface of the metal which facilitate the formation of rust, hence, only relatively fine sand should be used for this purpose  -  Flame descaling with a primer applied to the warm surface is advantageous  -  Removal or conversion of rust by chemical means has not proved successful in the case of steel constructional work  -  Wash primer and spray galvanizing  -  Effect of moisture and the chemical action of the ambient atmosphere on the application of protective coatings  -  Importance of the thickness of the film of the coating  -  Summary of the more important binders for use with anti-corrosive paints (oil binders, linseed varnish, hot linseed oil, wood oil)  -  Action and effect of pigments  -  Red lead and lead  -  cyanamide primary colours  -  Alkyd resin paints and oil-alkyd paints  -  Chlorinated rubber paints, chlorinated rubber-oil combinations and chlorinated rubber-alkyd combinations  -  Bituminous anti-corrosive paints on primers of asphalt, bituminous and coal tar pitch  -  Tar pitch emulsions - Suggestions for the choice of suitable anti-corrosive paints.
    Notes: Abhängigkeit der Rostbildung vom Klima, der Anwesenheit von Elektrolyten und der Art des Eisens  -  Walzzunder verringert die Haltbarkeit von Schutzanstrichen und sollte entfernt werden  -  Handentrostung ist meist unzureichend und sollte bei Neukonstruktionen nicht angewandt werden.  -  Grobe Sandstrahlung hinterlässt Spitzen, welche Ansatz zur Rostbildung geben, deshalb relativ fein strahlen  -  Flammentrostung in Verbindung mit Grundanstrich auf noch warme Eisen ist vorteilhaft  -  Chemische Entrostung und Rostumwandlung bei Stahlbauten nicht bewährt  -  Washprimer und Spritzverzinkung  -  Wirkung der Feuchtigkeit und aggressiver Atmosphäre bei der Ausführung von Anstrichen  -  Bedeutung der Filmdicke  -  Schema der wichtigsten Bindemittel für Rostschutzfarben  -  Die Ölbindemittel, Leinöfirnis, Standöl, Holzöl  -  Art und Wirkung der Pigmente  -  Bleimennige und Bleicyanamidgrundfarben  -  Alkydharzfarben und Öl-Alkyd-Kombindationsfarben  -  Chlorkautschukfarben, Chlorkautschuk-Öl-Kombinationen und Chlorkautschuk-Alkyd-Kombinationen  -  Bituminöse Rostschutzfarben auf der Grundlage von Asphalt  -  Bitumen und Steinkohlenteerpech  -  Teerpech-Emulsionen  -  Vorschläge fü die Wahl der je nach Anwendungsgebiet geeigneten Rostschutzfarben.
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    Description / Table of Contents: Corrosion protection of underground pipe lines by protective wrappingsDue to the many and varied properties of soils, anti-corrosion measures for protecting buried pipe lines present special problems. Usually such anti-corrosion measures consist of coatings of plastified bituminous compounds of varying thickness, which serve to insulate the pipe line from its surrounding soil.Steel pipes are usually delivered by the mill ready coated with some bituminous compound. The necessary protection of service pipes and joints is provided on the site by the use of prefabricated wrapping material. This consists of a foundation woven from some organic or inorganic fibres impregnated and coated with some protective material. Of late, plastic materials have been used with success. Such protection is applied by wrapping the material round the pipe so that each layer overlaps the preceding layer. If some heavy bituminous material is used, it is applied hot, so that a watertight covering shall result.Anti-corrosion methods consisting of a combination of well wrapped and insulated pipes and previous cathodic protection of the pipes promises to give particularly good results.
    Notes: An den Korrosionsschutz erdverlegter Rohrleitungen werden wegen der aggressiven Eigenschaften vieler Erdböden besondere Anforderungen gestellt. Meist besteht ein derartiger Korrosionsschutz aus einer mehr oder weniger dicken Umhüllung, von der man verlangt, daß sie das Rohr gegen seine Umgebung gut abdichtet.Stahlrohre erhalten in der Regel im Herstellungswerk bereits eine bituminöse Umhüllung. Fü das Nachisolieren auf der Baustelle sowie den Schutz von Hausanschlüssen und Rohrverbindungen benutzt man fertige Bandagen, die aus einem gewehten Träger aus organischen oder anorganischen Fasern mit einer Impräginerung und Auflagerung von Schutzmassen bestehen. Neuerdings werden mit gutem Erfolg auch Kunststoffe herangezogen. Die Aufbringung derartiger Schutzumhüllungen erfolgt im überlappenden Wickelverfahren, wobei im Falle der Verwendung dicker bituminöser Schutzbinden die Aufbringung unter Erwärmung erfolgt, um eine dichte Hülle zu gewinne.Eine Kombination des Korrosionsschutzes durch isolierende, gut abdichtende Bandagierung von Rohrleitungen mit dem kathodischen Schutzverfahren verspricht besonders gute Erfolge.
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    Description / Table of Contents: Rust Prevention by the use of Zinc Oxides containing LeadThis article describes the manufacture, properties and uses of zinc oxides containing lead. Such oxides are known at Home and Abroad under the trade name of “Harzsiegel”. Particular emphasis is laid upon the rust preventing qualities of such oxides.
    Notes: In der vorliegenden Abhandlung werden die Herstellungsweise, Eigenschaften und die Anwendung der bleihaltigen Zinkoxyde, wie sie unter dem Handelsnamen „Harzsiegel“ im In- und Ausland bekannt sind, besonders im Hinblick auf den Rostschutz, kurz beschrieben.
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    Description / Table of Contents: Special Steels for Use in the Construction of High Pressure Plant in the Chemical IndustrySteel is the most important material utilised in the construction of high pressure synthesis plant. The material both from the physical as well as from the chemical standpoint can only be met by the use of specially alloyed steels. These include low alloyed steels, which offer a great resistance to the effects of heat and of hydrogen under pressure. High alloyed ferritic and austenitic steels are also highly resistant to corrosion, and are therefore of special interest. The possibility of producing steels able to resist the action of hydrogen under high pressures was already recognised during the development of the Huber-Bosch Ammonia Synthesis Process. However, the large-scale employment of such steels only took place later when industrial synthesis process were evolved, particularly in the synthesis of motor fuels. The articles makes reference to the latest developments in the production of such steels, which in some cases, also require the production of special alloying materials. Reference are also made to the behavior of such steels under operational conditions, the physical and chemical action of hydrogen and the surface protection of such steels. The article concludes with a special note on, the behavior of components which are subject to very high internal pulsating pressures.
    Notes: Für Hochdruck-Syntheseanlagen sind Stähle die wichtigsten Werkstoffe. Die hohen Anforderungen hinsichtlich mechanischer Widerstandsfähigkeit und chemischer Beständigkeit sind zum Teil nur durch Sonderstähle zu erfüllen; unter diesen sind einerseits die niedriglegierten Stähle, die mit hoher Warmfestigkeit Beständigkeit gegen die Einwirkung von Druckwasserstoff vereinigen, und andererseits die hochlegierten ferritischen und austenitischen Stähle, bei welchen zusätzlich noch hohe allgemeine Korrosionsbeständigkeit vorliegt, von besonderem Interesse. Die Möglichkeit der Erzielung von Druckwasserstoffbeständigkeit von Stählen durch geeignete Legierungszusätze wurde bereits im Entwicklungsstadium der Haber-Bosch-Ammoniaksynthese erkannt. Umfangreiche Verwendung fanden derartige Stähle aber erst bei später aufkommenden Großsynthesen, insbesondere in den Anlagen zur Herstellung von Treibstoff. Der nachfolgende Bericht macht Angaben über die neuere Entwicklung solcher Stähle, auf welche zeitweilig die Notwendigkeit der Beschränkung gewisser Legierungszusätze von besonderem Einfluß war. Es werden Angaben gemacht über die Erprobung und betriebliche Bewährung der Stähle, die physikalische und chemische Einwirkung von Wasserstoff, Verfahren des Oberflächenschutzes und schließlich über Bauteile die durch hohen pulsierenden Innendruck beansprucht sind.
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    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: D-D Reaction Points and VarnishesThe term “D-D” is an abbreviation used for materials that have a base of Desmophen (Polyester) and Desmodur (Di-isocyanate). The use of D-D paints and varnishes produces a film which has remarkable properties of resistance to physical and chemical action. The article deals with the limits and possibilities of the application of these materials and is based on the results of many years of laboratory research, as well as practical experience.The nomenclature of the various D-D paints and varnishes is given, together with their chemical properties. A short survey of their capability of resisting the effects of weather, light and heat is followed by a detailed description of the resistance of D-D paints and varnishes to the action of chemical engineering. Instructions are also given for the correct application of the paints and varnishes when used with various types of primers.
    Notes: Die Bezeichnung „D-D“ ist eine Abkürzung für Werkstoff auf der Grundlage von Desmophen (Polyester) und Desmodur (Dilisocyanat). D-D-Anstrichstoffe ergeben Filme von bemerkenswerter mechanischer und chemischer Widerstandsfähigkeit. Im Bericht werden die Möglichkeiten und Grenzen des Materials herausgestellt. Als Unterlagen dienen mehrjährige Laboratoriums-Untersuchungen und umfangreiche Erfahrungen aus der Praxis.Einleitend werden kurz die verschiedenen Benennungen von D-D-Anstrichstoffen und im Zusammenhang damit ihr chemischer Charakter behandelt. Nach einem Überblick über das Verhalten im Wetter, in der Belichtung und in der Wärme wird über die Beständigkeit von D-D-Anstrichfilmen gegen die verschiedensten chemischen Agenzien, technischen Flüssigkeiten und Lösungen im Detail berichtet. Zum Anstrichaufbau auf verschiedenen Untergründen und zur Verarbeitung werden grundsätzliche Hinweise gegeben.
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The Action of Alkaline Solutions on Aluminium and Aluminium AlloysPure aluminium is so strongly active in 0,1-NaHO that it cannot even be passivated by anodic treatment. Its passivity in alkaline solutions weaker than 0,1-NaOH is very quickly destroyed when the solution contains NaCl. However, an alloy of Al-Mg containing more than 14% Mg can be passivated in strong NaOH. This passivity is also less sensitive to chlorides than that of pure aluminium.Pure aluminium and the Al-Mg alloys are permanently active in pure NaCl solutions, since the Aluminium Chloride is very soluble and, as a result of the Al(OH)3 formed by hydrolysis, is not directly on the surface of the metal, and therefore cannot cause any formation of covering layers.An addition of NaOH to the NaCl solution diminishes the action of the NaCl on pure aluminium. This is due to the formation of a covering layer. In the case of NaCO3 solutions the re-dissolving power of the solutions is so small that passivity is easily obtained. A quantative determination of the porosity of the layer of natural oxide on aluminium showed a pore area of 0,035 % of the total surface area. The higher the concentration of the alkali and the greater the sodium chloride content of the solutions, the more porous will be the covering layers formed s a result of the passivation.It is not possible to reduce by anodic treatment the amount of metal removed when aluminium is acted upon by alkaline solutions, since anodic treatment is no longer possible with the alkali concentration necessary to act on the metal.
    Notes: Reinstaluminium ist in stärkeren Laugen als 0,1-n-NaOH so stark aktiv, daß es auch bei einer anodischen Behandlung nicht passiviert werden kann. Die Passivität in Laugen, die schwächer als 0,1-n-NaOH sind, wird durch einen Gehalt der Lauge an NaCl sehr schnell zerstört. Eine Al-Mg-Legierung mit mehr als 14% Mg kann jedoch auch in starker NaOH ohne weiteres passiviert werden, da MgO und Mg(OH)2 in Laugen unlöslich sind. Diese Passivität ist auch gegen Chloride viel weniger empfindlich als selbst die von Reinstaluminium.In reinen NaCl-Lösungen sind Reinstaluminium und Al-Mg-Legierung dauernd aktiv, da das Aluminiumchlorid sehr leichtlöslich ist und durch Hydrolyse gebildetes Al(OH)2 nicht unmittelbar an der Metalloberfläche entsteht und daher auch zu keiner Deckschichtbildung führen kann.Durch einen Zusatz von NaOH zur NaCl-Lösung wird der Angriff von NaCl auf Reinstaluminium verringert, was auf eine Deckschichtbildung zurückzuführen ist. In NaCO3-Lösungen ist das Rücklösungsvermögen der Lösung so gering, daß eine Passivität ohne weiteres erzielbar ist. Die quantitative Bestimmung der Porosität der natürlichen Oxydschicht am Aluminium ergab für Sodalösungen eine Porenfläche von etwa, 0,035 % der Gesamtfläche. Je stärker die Laugenkonzentration und je größer der Gehalt der Lösung an Natriumchlorid ist, desto porösere Deckschichten werden bei der Passivierung gebildet.Es ist nicht möglich, die Metallabtragung beim Beizen von Aluminium in Laugen durch eine anodische Behandlung und Deckschichtbildung zu verringern, da bei den für das Beizen in Betracht kommenden Laugenkonzentrationen eine anodische Passivierung nicht mehr möglich ist.
    Additional Material: 10 Ill.
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Reaction Primer and Metal PaintingThe complex reactions which take place when reaction or wash primers are applied to metallic surfaces lead to the formation of an insoluble surface layer, which combines with the basic metal and the subsequent coats of paint that are applied to it. There are many different ways in which reaction primers can be made up and their composition depends upon the nature and properties of the metallic surface to be protected. The latest developments and experiences with these “metallic wanderers” are recorded.
    Notes: Die komplexen Reaktionen, die bei Auftrag von Reaktions- oder Wash-Primer/ auf Metall ablaufen, führen zur Bildung einer unlöslichen metallorganischen Deckschicht, die zugleich mit dem Grundmetall und den nachfolgenden Anstrichschichten „verwächst“. Der Aufbau von Reaktionsprimer ist vielfach verschieden und richtet sich auch nach der zu schützenden Metallart. Es werden neuere Erfahrungen mit diesen “Metallwandlern“ mitgeteilt”.
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    Weinheim [u.a.] : Wiley-Blackwell
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics